PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-21:58:10
G10     244.7          23.2               14.6 +/-    1.79      29.8 +/-    1.79  0.040 / 0.040
G13     59.9           32.2                6.3 +/-    1.66      10.5 +/-    1.66  0.040 / 0.050
G15     101.3          57.7                7.4 +/-    1.27       8.6 +/-    1.27  0.070 / 0.100
G16     302.9          15.3                7.1 +/-    1.46      17.5 +/-    1.46  0.060 / 0.150
G20     261.2          46.0               10.8 +/-    2.59      14.3 +/-    2.59  0.030 / 0.030
G21     325.3          54.5                7.5 +/-    0.57       9.0 +/-    0.57  0.030 / 0.040
G26     275.2          17.9                9.3 +/-    1.15      21.6 +/-    1.15  0.130 / 0.180
G29     160.7          58.0                7.8 +/-    0.68       9.0 +/-    0.68  0.150 / 0.260